83197966979138 has 8 divisors (see below), whose sum is σ = 136142127784080. Its totient is φ = 37817257717780.

The previous prime is 83197966978999. The next prime is 83197966979173.

83197966979138 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 83197966979138.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1890862885868 + ... + 1890862885911.

It is an arithmetic number, because the mean of its divisors is an integer number (17017765973010).

Almost surely, 2^{83197966979138} is an apocalyptic number.

83197966979138 is a deficient number, since it is larger than the sum of its proper divisors (52944160804942).

83197966979138 is a wasteful number, since it uses less digits than its factorization.

83197966979138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3781725771792.

The product of its digits is 6666395904, while the sum is 86.

The spelling of 83197966979138 in words is "eighty-three trillion, one hundred ninety-seven billion, nine hundred sixty-six million, nine hundred seventy-nine thousand, one hundred thirty-eight".